A closed-loop acoustic stimulation brainwave technology significantly reduced symptoms in people suffering from post-traumatic stress in a small pilot study conducted at Wake Forest Baptist Medical Center. “The effects of chronic stress are killing people and the medical profession has not yet found an answer for how best to treat them,” said Charles H. Tegeler, MD, professor of neurology at Wake Forest School of Medicine, a part of Wake Forest Baptist. “We believe there is a need for effective, non-invasive, non-drug therapies for symptoms of post-traumatic stress, which is why we conducted this trial.” Nineteen volunteers who reported high scores on the Post-traumatic Stress Disorder Checklist, civilian version (PCL-C), a commonly used symptom inventory, were included in this single-site study. Of those, 18 completed an average of 16 sessions over a total of 16.5 days, with eight days of actual visits to the office, Tegeler said.